• Tülay Ceren Ölmeztürk Karakurt, Ufuk Kuyrukluyıldız, Didem Onk, Süheyla Ünver, and Yusuf Kemal Arslan.
• Mengücek Gazi Training and Research Hospital, Anesthesiology and Reanimation Clinic, Erzincan Binali Yıldırım University, Erzincan, Turkey. drcerenkarakurt@gmail.com.
• Anaesthesist. 2022 Jan 13.

ObjectiveTo compare the effects of total intravenous anesthesia (TIVA) and inhalation anesthesia (IA) used in lumbar disc herniectomy on postoperative cognitive recovery based on the mini-mental state examination (MMSE) score and neuron-specific enolase (NSE) levels.Material And MethodsThe study sample consisted of 80 patients aged 18-65 years who were scheduled for elective lumbar disc herniectomy. The patients were divided into two groups according to the anesthesia technique applied, such as TIVA or IA. The patients in the TIVA group were administered remifentanil and propofol and those in the IA group were administered sevoflurane for maintenance. The MMSE was applied to the patients before the operation and 1h and 24 h postoperatively. Venous blood samples were obtained for the measurement of NSE before the operation and on the 24 h postoperatively.ResultsThe mean preoperative MMSE scores were similar in the two groups. In the TIVA group, the preoperative and postoperative MMSE scores at 1 h were similar but were higher at 24 h postoperatively compared to the previous two scores (p = 0.001 and p < 0.001, respectively). In the IA group, the preoperative and postoperative 24 h MMSE scores were similar but lower at 1h postoperatively than the other two scores (p = 0.006 and p < 0.001, respectively). In the TIVA group, there was a significant decrease in the postoperative serum NSE levels than the preoperative values (p = 0.038).ConclusionThe use of IA may result in higher cognitive dysfunction 1h after the operation compared to TIVA. The effects of both methods on cognitive functions were similar at 24 h postoperatively.© 2022. The Author(s), under exclusive licence to Springer Medizin Verlag GmbH, ein Teil von Springer Nature.

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